* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* 小刘的样式 */
.xiaoliu-h1 {
  display: block;
  font-size: 50px;
  background-image: linear-gradient(to bottom right, red, yellow);
}
.tanpan {
  background-color: skyblue;
}
.zhaohongr{
  background-color: rgb(230, 142, 230) ;
  font-size: 20px;
  font-weight: 700;
  width: 500px;
  height: 100px;
}
